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effectivehealthcare.ahrq.gov/sites/default/files/14_substanceabuse_potential_high_impact_june_2012.pdf
January 01, 2012 - A larger trial is planned. … in the ClinicalTrials.gov database, the
developers of the program state that they are conducting a randomized … , controlled trial that will
investigate the Text2Quit program combined with the Smokefree.gov program … July 2011 press release, the
manufacturer stated that data from a phase III placebo- and active-drug-controlled … Naltrexone (once-monthly controlled-release,
Medisorb). [138 p].
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effectivehealthcare.ahrq.gov/sites/default/files/related_files/cer-254-rural-telehealth-app-e.xlsx
January 01, 2021 - Risk of bias assessment: randomized controlled trials
Author, Year Randomization Adequate? … Groups Similar or Controlled for Important Baseline Differences?
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effectivehealthcare.ahrq.gov/sites/default/files/coronary-artery-disease-testing_disposition-comments.pdf
March 29, 2016 - Risk difference (RD) provides an absolute
measure for randomized controlled trial
data. … Trial. … Diagnostic performance and cost
of CT angiography versus stress ECG--a randomized
prospective study … Relations and
Advocacy
General Key References CCTA in the Symptomatic Stable Chest
Pain – Large Randomized … A
randomized, multicenter, multivendor study of myocardial
perfusion imaging with regadenoson CT perfusion
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effectivehealthcare.ahrq.gov/sites/default/files/related_files/glaucoma-treatment_executive.pdf
April 01, 2012 - controlled trials and quasi-
randomized controlled trials of medical, laser, and
incisional surgical … and quasi-randomized controlled trials. … High-quality randomized
controlled trials have also shown that reduction of
intraocular pressure slows … The Ocular
Hypertension Treatment Study: a randomized trial determines
that topical ocular hypotensive … Early Manifest
Glaucoma Trial Group. Natural history of open-angle glaucoma.
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effectivehealthcare.ahrq.gov/sites/default/files/related_files/pharma-nonpharma-ptsd-2022-update-app-g1.xlsx
January 01, 2022 - RoB judgement 2.1) Were ppts aware of their assigned intervention during the trial? … carers and people delivering the interventions aware of participants' assigned intervention during the trial … masking carers or ppts) were there deviations from the intended intervention that arose because of the trial … substantial impact (on the result) of the failure to analyse participants in the group to which they were randomized … RoB judgement 3.1) Were data for this outcome available for all, or nearly all, participants randomized
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effectivehealthcare.ahrq.gov/sites/default/files/arthritis-horizon-scan-high-impact-1412.pdf
December 01, 2014 - In the CLEAR1 trial, patients given lesinurad 200 mg or 400 mg, and 54% and 59%,
respectively, achieved … 6, compared with 28% of
patients treated with allopurinol and placebo (p<0.0001).5 In the CLEAR 2 trial … number of gout flares or
number of patients with complete tophus resolution.8
In the phase III, randomized … , double-blind CRYSTAL trial (n=324), patients with gout, sUA
levels of 6.0 mg/dL or more, and at least … and febuxostat did not achieve a statistical
improvement at month 6 (p=0.13).6
In the phase III, randomized
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effectivehealthcare.ahrq.gov/sites/default/files/ch_5-user-guide-to-ocer_130129.pdf
January 01, 2012 - comparisons
within the same indication may still result in
confounding by severity when not adequately
controlled … rates or outcome definitions over time
could introduce bias into the analyses and must
be adequately controlled … Comparator Selection
“time-to-response” or immortal person-time
bias if not adequately controlled.29 … Increasing levels of restriction in
pharmacoepidemiologic database studies of
elderly and comparison with randomized … trial
results.
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effectivehealthcare.ahrq.gov/sites/default/files/related_files/cesarean-birth-2010_disposition-comments.pdf
January 01, 2010 - Team midwifery care
in a tertiary level obstetric service: a randomized controlled
trial. … trial of 1299 women. … To be a site in a randomized trial, at
minimum, the leadership of units involved was invested in
the … In the included randomized studies,
trial assignment could not possibly be masked at all levels -
sites … We agree that unlike in placebo
controlled trials, the "comparator" is varied.
-
effectivehealthcare.ahrq.gov/sites/default/files/related_files/cell-free-dna-disposition-comments.pdf
May 14, 2025 - The fact that KQ4 required a randomized
study (top of page 23) makes sense, but
may need to be re-emphasized … We have revised the text to further
emphasize that controlled studies were
required for eligibility … It makes a
great deal of sense to collect and monitor
these data in randomized studies so that if … This would include controlled cohort
studies. … The Consortium noted
that “randomized controlled trials(RCTs) with
mortality endpoints, which are the
-
effectivehealthcare.ahrq.gov/sites/default/files/related_files/registries-guide-2nd-edition_disposition-comments.pdf
March 03, 2010 - By definition, pregnant women would not be 'randomly' exposed
postapproval except in a clinical trial … disease and a first product with proven efficacy, it would not be ethical to
randomize patients in a trial … pregnant women, or in populations where it may be difficult to accrue
sufficient numbers of clinical trial … Page 18: A number of questions around stents have been addressed by a
number of meta‐analyses of randomized … product will depend upon the size, duration, representativeness, and
thoroughness of the clinical trial
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effectivehealthcare.ahrq.gov/sites/default/files/related_files/behavioral-health-screening-disposition-comments.pdf
April 09, 2025 - This statement refers to the use of the risk
of bias assessment tool for randomized
controlled trials … (2017) Cognitive-behavioral family treatment for suicide
attempt prevention: a randomized controlled … trial. … Controlled Trial. … (2010) Attachment-based family therapy for adolescents
with suicidal ideation: A randomized controlled
-
effectivehealthcare.ahrq.gov/sites/default/files/cer-243-prehospital-airway-management-appendix-e-1_0.xlsx
January 01, 2020 - Airway scope: 74.4 (13.6)
Laryngoscope: 74.1 (13.0) NR NR Moderate
Bartlett, 1992 1992 0 0 1 NR Controlled … Clinical Trial (grouped with prospective observational) U.S. … Clinical Trial (grouped with prospective observational) U.S. … Clinical Trial (grouped with RCT) U.S. … pharyngeo-tracheal lumen
PtL pharyngeotracheal lumen airway
Q1 quartile 1
Q3 quartile 3
RCT randomized
-
effectivehealthcare.ahrq.gov/sites/default/files/related_files/appendicitis_executive.pdf
December 01, 2015 - Searches were conducted in PubMed®,
Embase®, the Cochrane Central Register of Controlled
Trials, and … controlled trials (RCTs), one reviewer
extracted and a second reviewer verified the data. … Flow chart of included studies
CCRCT = Cochrane Central Register of Controlled Trials; KQ = Key Question … Flow chart of included studies
CCRCT = Cochrane Central Register of Controlled Trials; KQ = Key Question … If randomized studies are deemed
necessary, consideration should be given to paired
randomized designs
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effectivehealthcare.ahrq.gov/sites/default/files/product/pdf/postpartum-care-one-year-protocol-amendment.pdf
April 25, 2022 - controlled trials (N ≥10 participants per group)
● Nonrandomized comparative studies, longitudinal … U.S. only
● Outpatient care
● Exclude: Institutionalized settings (e.g., prisons)
Design
● Randomized … controlled trials (N ≥10 participants per group)
● Nonrandomized comparative studies, longitudinal … We will include specific
controlled vocabulary terms (MeSH or Emtree), along with specific free-text … controlled trial
ROBINS-I Risk of Bias in Nonrandomized Studies of Interventions
SoE strength of evidence
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effectivehealthcare.ahrq.gov/sites/default/files/pdf/arthritis-psoriatric_research-protocol.pdf
December 06, 2010 - biologic agents were introduced; management options tended
to be adapted from rheumatoid arthritis (RA) trial … evidence (study
design and other
criteria)
Original research; eligible study designs include:
• Randomized … controlled trials (RCTs) with a sample
size of equal to or greater than 100
• Nonrandomized controlled
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effectivehealthcare.ahrq.gov/sites/default/files/11_pepticulcer_potential_high_impact_june_2012.pdf
January 01, 2012 - In the absence of
randomized or long-term trials for POEM, some experts are uncertain of POEM’s degree … In three patients, GERD symptoms
were controlled with proton pump inhibitors.
24
In another case … In the absence of randomized or long-term trials for POEM, some experts remain unsure how
impactful … controlled trials. … , double-blind, placebo-controlled, phase III trial, investigators
reported that 63% of patients (n
-
effectivehealthcare.ahrq.gov/sites/default/files/related_files/cer-210-breastfeeding-disposition-comments.pdf
January 01, 2020 - , a cluster-
randomized controlled trial." … , a
cluster-randomized controlled trial." … , a cluster-
randomized controlled trial." … The Cohen article is not a controlled trial, but
there is nothing in the methods section that
states … Peer Reviewer 6 General
Comments
The WIC food package study was clearly not a
controlled trial but
-
effectivehealthcare.ahrq.gov/sites/default/files/related_files/cancer-radiation_appendixes.pdf
June 16, 2008 - Final
report of a Northern California Oncology Group randomized prospective clinical trial. … A prospective, randomized, dynamically balanced trial. … A randomized controlled trial of varying radiation
doses in the treatment of choroidal melanoma. … Advanced prostate cancer: the results of a
randomized comparative trial of high dose irradiation boosting … controlled trial [see comment].
-
effectivehealthcare.ahrq.gov/sites/default/files/pdf/autism-update_research-protocol.pdf
September 20, 2013 - method relies heavily on one-on-one therapy sessions during
which a trained therapist uses discrete trial … And for randomized controlled trials, was there an intent-to-treat
analysis? … controlled trial, prospective observational study, etc.). … we will present results
by study design, with a focus on those designs less subject to bias (i.e., randomized … controlled
trials, controlled trials) and those studies rated as of higher quality in our quality-assessment
-
effectivehealthcare.ahrq.gov/sites/default/files/related_files/weight-loss-surgery_disposition-comments.pdf
June 05, 2013 - When we examine the emerging scientific literature on the
subject, there are a modest number of randomized … However, it is difficult to do randomized
trials of surgery and the report concludes it would be nice … Therefore, in selected patients with
inadequately controlled diabetes or other metabolic conditions … randomized trials) evaluating the effects
of bariatric surgery in diabetic patients with BMI < 35. … None needed
OAC General Therefore, in selected patients with inadequately controlled
diabetes or